102154005 has 24 divisors (see below), whose sum is σ = 177485568. Its totient is φ = 54353376.

The previous prime is 102153991. The next prime is 102154007. The reversal of 102154005 is 500451201.

It is not a de Polignac number, because 102154005 - 2⁵ = 102153973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102154007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18384 + ... + 23286.

It is an arithmetic number, because the mean of its divisors is an integer number (7395232).

Almost surely, 2^102154005 is an apocalyptic number.

102154005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102154005 is a deficient number, since it is larger than the sum of its proper divisors (75331563).

102154005 is a wasteful number, since it uses less digits than its factorization.

102154005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377 (or 5374 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 102154005 is about 10107.1264462259. The cubic root of 102154005 is about 467.4679055627.

The spelling of 102154005 in words is "one hundred two million, one hundred fifty-four thousand, five".